Donate to e Foundation | Murena handsets with /e/OS | Own a part of Murena! Learn more

Commit ae6d3435 authored by Chunming Zhou's avatar Chunming Zhou Committed by Alex Deucher
Browse files

drm/ttm: add lru notify to bo driver v2 



allow driver do somethings when lru changed.
v2:
address Michel's comments.

Signed-off-by: default avatarChunming Zhou <david1.zhou@amd.com>
Reviewed-by: default avatarChristian König <christian.koenig@amd.com>
Signed-off-by: default avatarAlex Deucher <alexander.deucher@amd.com>
parent 466bcb75

drivers/gpu/drm/ttm/ttm_bo.c

+7 −4
Original line number Diff line number Diff line
@@ -198,19 +198,22 @@ static void ttm_bo_ref_bug(struct kref *list_kref) 


void ttm_bo_del_from_lru(struct ttm_buffer_object *bo)

{

	struct ttm_bo_device *bdev = bo->bdev;

	bool notify = false;



	if (!list_empty(&bo->swap)) {

		list_del_init(&bo->swap);

		kref_put(&bo->list_kref, ttm_bo_ref_bug);

		notify = true;

	}

	if (!list_empty(&bo->lru)) {

		list_del_init(&bo->lru);

		kref_put(&bo->list_kref, ttm_bo_ref_bug);

		notify = true;

	}



	/*

	 * TODO: Add a driver hook to delete from

	 * driver-specific LRU's here.

	 */

	if (notify && bdev->driver->del_from_lru_notify)

		bdev->driver->del_from_lru_notify(bo);

}



void ttm_bo_del_sub_from_lru(struct ttm_buffer_object *bo)

include/drm/ttm/ttm_bo_driver.h

+9 −0
Original line number Diff line number Diff line
@@ -381,6 +381,15 @@ struct ttm_bo_driver { 
	 */

	int (*access_memory)(struct ttm_buffer_object *bo, unsigned long offset,

			     void *buf, int len, int write);



	/**

	 * struct ttm_bo_driver member del_from_lru_notify

	 *

	 * @bo: the buffer object deleted from lru

	 *

	 * notify driver that a BO was deleted from LRU.

	 */

	void (*del_from_lru_notify)(struct ttm_buffer_object *bo);

};



/**